Furnace attachment



Feb. 17. 1925.

1,526,508 H. B. SMITH FURNACE ATTACHMENT Filed March l, 1925 ATTORNEY Patented Feb. 17, 1925.

" UNITED STATES HARRY B. SMITH, OF CARRICK, PENNSYLVANA.

FURNACE ATTACHMENT.

Application filed March 1, 1923.

To all whom t may concern.'

. State of Pennsylvania, have invented new and useful Improvements in Furnace Attachments, of which the following is a specification.

My invention relates to furnace attachments, and more particularly to means for taking care of the ashes discharged from furnace grates, stokers, and the like and also to take care of the water with which the ashes are sprinkled.

It is one object of this invention to provide an ash-gate or similar device with a means which will carry ott the water flowing through the ashes and past the gate, and prevent it from falling into the pit or basement beneath. Another object is to utilize the said means as a chute or hopper for guiding the ashes into a truck or other receptacle as they fall through the gate when partly or fully opened. Other objects appear hereinafter.

Referring to the accompanying drawing, Fig. 1 is a side view, partly in section, of a furnace attachment equipped with my invention; Fig. 2, a bottom plan view of the device shown in Fig. 1, parts being omitted; Fig. 3, a cross-section of the ashgate and its frame, parts being broken away; and Fig. 4, a plan view of the gate and some of the adjacent features.

On the drawing, 1 designates a rectangular frame surrounding the rectangular ashdischarge opening 2 therein. 3 is the ashgate which is arranged to cover the opening 2 and slides on the frame 1 and between the guides 4 attached to the frame. The ash-gate may be operated by the piston rod 5 or other suitable means which will operate the gate 8 so as to uncover more or less of the discharge opening 2. 6 is a chute or hopper to direct the ashes to the gate from a furnace (not shown) above. The toothed rolls 7 are for grinding or breaking the clinker into small portions, and 8 are sprinklers for directing water into the ashes abovel the grinding rolls 7 for the purpose of cooling the ashes so that they will not damage the grinding rolls. The apparatus so far as described is old and well known.

At opposite ends of the frame and outwardly beyond opposite edges of the open- Seral No. 622,166.

ing 2, I pivot the trough-members 9 and 10. One edge of the member 9 is pivoted to the under side of the frame on the pivots or hinge-pins 11. The frame has the pendent bars or stops 12 which engage the inember 9 when in its upper position and prevent its further upward movement. The stops 12 are of such length as to position the free or inner end of the member 9 at a lower level than the hinged opposite end in order that water may readily flow from the hinged end to the free end of the member 9.

The trough-member 10 is pivoted between its ends to the lower ends of the hangers 13, the hinge-pins 14 being outwardly beyond the adjacent edge of the opening 2. The inner end of the member 10 can be swung up so that it lies under the inner end of the member 9 where it will receive water therefrom and carry it to the wastetrough 15. The hangers 13 are made long enough to keep the member 10 at about the same angle with the horizon as the member 9 when they are in their upper or water-carrying positions.

A chain 16 is attached by its ends to the opposite sides of the member 9 near its inner edge, the chain ruiming from its ends up over the sheaves 17 and then horizontally and finally down over the sheaves 18, the central part of the chain between the sheaves 18 passing beneath a sheave 19 attached to the piston rod 20 of the air or other power cylinder 21 or other motor. Each side of the member 10 near its inner edge has one end of a chain 22 attached thereto, each chain thence running up over sheave 23, the other end of the chain being attached to the chain 16 as at 24.

The parts being as in Fig. 1, full lines, all water from the hopper 6 will run down the trough-members 9 and 1() and into the waste-trough 15. Then it is desired to remove ashes from the hopper, a truck may be run beneath the ash-gate. Then the piston rod 20 is operated so as to allow the troughmembers to swing down to the positions shown in dotted lines, where these members may act as a hopper or chute to guide the ashes into the truck as soon as the piston 5 is operated to move the gate 53 so to uncover more or less of the opening 2. The trough-members 9 and 10 and the gate 3 are returned to their normal positions by the actuation of the piston rods 20 and 5.

It is readilyseen that the space beneath the ash-gate is kept dry, the water being disposed of in a simple, cheap and eihoient manner and that the trough members need no fiushing to clean them, because the wet ashes sliding down them have a troughcleaning function. do not limit myself to the control means shown for operating the ash-gate and trough-members, as many devices, manual and mechanical, will suggest.

themselves to one acquainted with the art. I have shown only two trough-sections, but

'a larger number may be used, each upper one overlapping the lower end of the next lower member in the manner shown on Fig. l. I clainrrlhe combination et an ashes-receptacle having a bottom opening, a gate for closing the opening, means for supplying water to ashes in the receptacle, a trough-member pivoted between its ends below and at one side of the opening, one end of the troughmember extending laterally beyond the opening and the other end thereot1 being beneath the receptacle, and a second troughmember pivoted at the opposite side of the.

said opening', the second trough-member, when in one position, being adapted to deliver water falling therein from the receptacle to the first trough-member, while the latter conveys to one place the water received from the second trough-member and from the receptacle, the two trough-members, when in another position and the gate is open, directing to another place the ashes falling through the opening.

ln testimony whereof, I hereunto affix my signature this 27th day of February,

HARRY B. SMITH. 

